Pressure sensor assembly

Inactive Publication Date: 2014-01-02
AMPHENOL THERMOMETRICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The pressure sensor assembly has a larger outlet portion than its inlet portion, which helps to reduce damage or cracking of the pressure sensing die during spikes in pressure. This is because the larger outlet portion dissipates energy in the pressure wave and decreases the magnitude of its pressure.

Problems solved by technology

In some assemblies, the pressure sensing die can crack or otherwise be damaged by energy transferred from the fluid to the die during spikes in pressure.

Method used

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  • Pressure sensor assembly
  • Pressure sensor assembly
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Examples

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Embodiment Construction

[0018]FIG. 1 is an exemplary pressure sensor assembly 10, which includes a sensor body 20 (or first member) coupled to a first end 32 of a sensor port 30 (or second member) that form the package for a substrate 40 to which a pressure sensing die 50 is mounted. The pressure sensing die 50 measures the pressure of a fluid (e.g., gas, liquid) that flows through the fluid channel 34 of the sensor port 30. The sensor port has a second end 33 coupled to the source of the fluid, then through the fluid channel 44 of the substrate 40, and then through the fluid channel 54 of the pressure sensing die 50, wherein the fluid channels 34, 44, 54 are aligned axially to allow a continuous fluid path. In the exemplary embodiment, the substrate 40 is a ceramic button. Although the exemplary embodiment employs a sensor body 20 and sensor port 30 enclosing the substrate 40, it will be understood that different members can be used to enclose the substrate 40.

[0019]The sensor body 20 can include a cavity...

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Abstract

A pressure sensor assembly comprises a fluid channel having an inlet portion and an outlet portion, wherein the outlet portion is larger than the inlet portion.

Description

BACKGROUND OF THE INVENTION[0001]The subject matter disclosed herein relates to a pressure sensor assembly for measuring the pressure of a fluid.[0002]Pressure sensor assemblies can include a pressure sensing die mounted to a substrate that is retained by a package. In one configuration, the pressure sensing die is exposed to a fluid (e.g., liquid or gas) that travels through a channel in the package and / or substrate in order to determine the pressure of the fluid. In some assemblies, the pressure sensing die can crack or otherwise be damaged by energy transferred from the fluid to the die during spikes in pressure.[0003]The discussion above is merely provided for general background information and is not intended to be used as an aid in determining the scope of the claimed subject matter.BRIEF DESCRIPTION OF THE INVENTION[0004]A pressure sensor assembly comprises a fluid channel having an inlet portion and an outlet portion, wherein the outlet portion is larger than the inlet porti...

Claims

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Application Information

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IPC IPC(8): G01L7/00
CPCG01L19/0609G01L19/143G01L19/147
InventorMICLAUS, CALIN VICTORENGLE, BRIAN ALLENWAGNER, CHRIS DANIELGEE, DALE ALAN
OwnerAMPHENOL THERMOMETRICS